Ski tie



June 2, 1936- J. MAUS SKI TIE Filed Feb. 16, 1954 2 Sheets-Sheet 1 June2, 1936. Aus 2,042,543

SKI TIE Filed Feb. 16, 1934 2 Sheets-Sheet 2 the fixing screws PatentedJune 2, 1936 UNITED STATES SKI TIE Johann Maus, Stuttgart, GermanyApplication February 16, 1934, Serial No. 711,574 In Germany September28, 1933- 9 Claims. (Cl. 208184) This invention relates to'a ski tiewith adjustable toe irons. For ensuring absolutelyreliable fixation inany desired adjustment, the toe irons are provided on the two curvedends with teeth which engage in similar teeth on two straight'transversebars arranged one opposite each end of the irons. Such ties are known inwhich these toothed transverse bars are immovably fixed on a base plate.Theirmain objection is therefore that, when adjusting the toeirons, mustbe unscrewed sufliciently toe irons to be raised above the transversebars in order to be brought into a fresh position. They arethen againfixed'by tightening the fixing screws.

The novelty of the invention consists in that the two toothed bars;situated under-a cover plate, are-brought into and out'of engagementwith the toothed'ends of'the toe'irons-bylongitudinal displacement.stance the toe irons arerheld: immovable and in the second instance theyare liberated for" adjustment;

All formsof constructionmay be with of without-baseplate.

In the first instan-ce-the-toe irons-are made in one piecewith: the baseplate in such a man-- ner thata holding means fixed on' the' latter andengaging the. toe irons covers'these irons far to enable the I and holdsthem in a recess; By means-of transverse slots a limited lateralshifting of-th'e toe irons'is possible," besides'a turning movement,whereas'the longitudinal shifting is prevented. Thus, thefollowingfurther advantages are derived:-:

Thenbase plate and the'twotoeirons form together an inseparable whole,so that the connection is maintained even when-the toothed bars aredisengaged from the teeth on the end of the toe'irons by loosening thefixing screws. The readjustment of the toe irons for another'size ofshoe-can then be effected by slightly-shifting andturning; Afterretightening' the fixing screws, the tie is again ready for use.- Theseties are also. easier to fix on the skis because the base plate servesas template for the holes for the fix-. ing, screws in the ski board.

Five. embodiments. .without, basev plate and the arrangementof .thefixing screws when: employing a. baseplate.are illustrated byway ofexample inthe accompanying drawings, in .which:-

Fig.1 shows in top planviewa form-tof comstructionywithi bars 'which iare rigidly connected with1-the coverplate; 1

Thus; in the first in-- Fig.2 is a long-itudinalvertical section of Fig.1 with the toe irons loosened.

Fig. 3 is a similar view with the toe irons fixed.

Fig. 4 shows in-longitudinal vertical section a form of constructionwith bars which are 'separate from the cover plateand shiftedby theconical heads of the fixing screws.

Fig. 5 is a top'plan view of Fig.4 with part of the coverplate removed.

Fig. 6 is a longitudinal, vertical sectionof a similar form ofconstruction to that shown in Figs. 4 and 5, but in which the shiftingof the bars is effected by inclined surfaces of the cover plate pressingagainst similar surfacesonthe bars. I

Fig. '7 shows in longitudinal, vertical. section an arrangement in whichthe shifting of the bars is effected by cones fixed on the underside ofthe cover plate.

Fig; 8 isa side elevation-of an-arrangement with lateral longitudinalscrews connecting the two bars.

Fig; 9 is a top plan-view ofFig. 8. r

Fig. 10 shows in longitudinal section on line X'X of Fig. 11 a holdingdevice with'base plate.

Fig. 11 is a top plan view of Fig; 12 without cover plate. I

Fig. 12 is a part'sectionon a larger scale through the holding devicetaken on line XX of Fig. 11.

. All five forms of construction possess the com mon featurethat theadjustment of the toe irons is effected by 'hand after the fixing screwsof the tie have been loosened: These screws-need only be'loosened untilthe teeth of the bars and toe irons are disengaged. I

The engagement, and therefore the -fixation, of the'toe irons iseffected in the constructions shown in Figs. 1 to 7 by tighteningthefix-ing screws. In the construction shown in Figs. 8 and 9 the:disengagement and engagement is eifected by actuating-the longitudinalscrews also'after loosening the fixing screws: 'I'hetoeirons are securedin their adjusted position by retightening the fixing screws.

The-bearing arms of thetoe irons z areprovided in known manner withteeth v on their two convex end edges. d designates the cover p1ate,-lare-the two toothed transverse bars, and h the fixing screws nearthe'ends of the'cover'pla'te d.

In the form of construction shown in Figs. 1 m3 bars Z, provided'with'teeth on their inner slightly bevelled under-cut edge are arranged, oneon eachend-of-the cover plate cl and made iri'on'e piece with this platewhich bears on the toe irons 2.

When the screws h are tightened, the bars I bear against the ski boardand at the same time swing slightly inwards around their bent edge.Thus, their toothed inner edges are pressed horizontally against thetoothed curved edges of the toe irons z, engage in the teeth of thebearing arms of the irons and thus cause an absolutely reliable fixationof the toe irons in the width previously adjusted. To enable the bars tomove inwards during the tightening of the fixing screws, the holes forthe screws h are either made sufficiently large or preferably in theform of slots.

For adjusting the tie for another size of shoe, it is only necessary toloosen the screws h until the cover plate with bars can spring out sofar that the teeth are disengaged. When the toe irons have been shiftedinto their new position, the reengagement of the teeth and consequentlythe fixation of the toe irons, is effected by tightening the fixingscrews.

The bars I may be also connected with the cover plate by riveting,welding or in some other suitable manner.

In the forms of construction illustrated in Figs. 4 to 9, the bars arenot connected with the cover plate, but lie loosely thereunder.

In the form of construction. according to Figs. 4 and 5 the conicalheads of the fixing screws 71. engage in likewise conical recesses 70 inthe bars Z. To enable these bars to be longitudinally shifted, the holesfor the screws h are formed as longitudinal slots s.

The readjustment of the toe irons for another width position is effectedin the following manner: After the loosening of the fixing screw h foradjusting the toe irons z, the two bars I are shifted away from theirons 2 by means of the slots 3 until the teeth 1) are disengaged. Whenthe fixing screws h are tightened, their conical heads bear against thecorresponding inner surfaces of the conical holes 70 and shift the bars1 towards the toe irons until their teeth engage those of the toe ironsand tightly clamp the same. At the same time the cover plate d istightly pressed by the screw heads. v

In the form of construction shown in Fig. 6 the outer longitudinal edgesof the bars I have a bevelled surface against which a correspondinglyinclined surface of the cover plate d is pressed. When the fixing screws71. are tightened, the two bars I are pressed by these surfaces againstthe toe irons 2. In order to prevent lateral displacement of the bars Z,pins are provided on the under side of the cover plate d and engage inlongitudinal slots in the bars I.

In the construction shown in Fig. I any desired number of conicalpins care provided on the inner side of the cover plate d. These pins engagein conical recesses in the bars Z so that during the tightening of thefixing screws h the bars are pressed against the ends of the toe irons2.

In the construction illustrated in Figs. 8 and 9 eyes a are provided onthe bars Z. Bolts 1) provided at one end with a head for turning arerotatably mounted in the eyes of one of the bars e'and provided with ascrew thread at the other end to engage in screw threads in the eyes onthe other bar. The clamping and loosening of the toe irons is effectedin known manner by turning'the bolts 1). The bolts are prevented fromshifting in longitudinal direction by a collar 1 on the head end bearingagainst the end of the coordinate eye. The fixing screws h in this formof construction are preferably provided on the outer sides of thebars 1. If the teeth are bevelled in known manner, they rise on oneanother when pressed together. The resultant component of the forceproduced by the initial sliding and directed perpendicularly to thesurface of the ski then acts as a pressure force pressing the bearingsurface of the arms of the toe irons tightly onto their support throughthe intermediary of the cover plate.

In the form of construction shown in Figs. 10 to 12, g is the base platewhich has upwardly acting resilient tongues u under each of the toeirons. p is the holding device proper which is bored for accommodatingthe middle fixing screws m. It is fixed on base plate by riveting or thelike. Its upper edge is enlarged to form a disc, which engages in arecess t in the toe iron .2 and is flush with e the upper surfacethereof, so that it enables an easy transverse shifting and swingingmovement of the toe iron. Thus, the toe irons are prevented fromdropping off the base plate when the cover plate is removed. Moreover,the toe irons cannot slip under the toothed bars owing to the fact thatlongitudinal displacement of the toe irons is prevented. The tongues italso exert a slight braking pressure on the toe irons. For thetransverse shifting of the toe irons their recess t has a transverseslot 10 which at the same time limits the lateral displacement of thetoe irons.

The tie is fitted on the ski by nailing the base plate with the toeirons at the place marked by means of the two holes 1/ and which can bechecked by the middle hole q' and the intersecting lines i. The holesfor the fixing screws in and m. are then bored. The final fixing of thetie, after the cover plate 6 has been placed in position, is effected byscrewing the fixing screws into these holes.

The adjustment of the toe irons for another size of shoe is effected byloosening the fixing screws h and m, so that the toe irons aredisengaged from the toothed bars in raising the cover plate (1. The toeirons are then brought into the desired new position, whereupon they areagain fixed, and the tie is again made ready for useby retightening thefixing screws.

I claim:-

1. A ski binding, comprising in combination adjustable toe irons eachhaving a horizontal portion curved at its front and rear ends andprovided with teeth on these curved. ends, a cover. plate shiftable onsaid toe iron in longitudinal direction, straight holding bars undersaid cover bar, teeth on the inner edge of each of said holding barsadapted to engage with the teeth on the curved ends of the horizontalportions of said toe irons, said holding bars being shiftable in thelongitudinal direction of the ski to lock and release said toe irons,and screw bolts in said cover plate adapted to press down on to the skiboard said toothed bars and toe irons.

2. A ski tie comprising in combination toe irons, a base plate, holdingdevices one for each of said toe irons fixed in said base plate, afixing screw connecting each of said holding devices to the ski, adisc-like edgeformed on the upper end of said. holding device, said toeirons having each a recess accommodating said disc so that it lies flushwith the upper surface of said toe iron, and a transverse slot extendingfrom said recess and surrounding said fixing screw to allow limitedlateral displacement and the turning of said toe irons when said screwsare loosened.

3. A ski tie as specified in claim 1, comprising in combination with thetoe irons, a base plate under said toe irons, and tongues between saidtoe irons and said base plate adapted to exert a resilient brakingeffect in upward direction on said toe irons.

4. A ski binding as specified in claim 1, comprising a cover platehaving ends bent down and inwardly inclined adapted to serve as holdingbars.

5. A ski binding as specified in claim 1, comprising in combination withthe cover plate, fixation screws and toothed holding bars, a head oneach holding screw bevelled on the lower surface, each holding barhaving longitudinal slots one for each fixation screw with upper edgesbevelled corresponding to the bevel of the head of said fixation screwsaid screw head being adapted to cooperate with the bevelled upper edgesof said slots to shift said bar to bring its teeth into engagement withthe teeth on the toe irons.

6. A ski binding as specified in claim 1, comprising in combination withthe toe irons having curved hooked end portions, the cover plate havingroof-shaped bevels on the edges, the toothed holding bars under saidcover plate having an edge bevelled according to the corresponding bevelof said cover plate and longitudinal slots, the roof shaped bevellededges of said cover plate cooperating with the bevelled edges of saidholding bars to shift said bars and bring their teeth into engagementwith the teeth of said toe irons and pins projecting from the lower sideof said cover plate adapted to engage with said longitudinal slots ofsaid holding bars to prevent said holding bars from shifting intransverse direction..

7. A ski binding as specified in claim 1, comprising in combination withthe toe irons having toothed curved end portions, the cover plate andthe toothed holding bars under said cover plate having conical recessesin the upper surface, conical pins projecting from the lower side ofsaid cover plate and engaging said recesses to shift said bars to bringtheir teeth into engagement with the teeth of said irons and tightlyfitting in said conical recesses to securely hold said irons againstdisplacement.

8. A ski binding as specified in claim 1, comprising in combination withthe toe irons having toothed curved end portions, the cover plate andthe toothed holding bars under said cover plate, an eye in each end faceof each holding bar, and screw bolts screwed one into the eyes of thecorresponding ends of said holding bar for engaging the teeth of saidholding bars with the teeth of the corresponding curved portions of saidtoe lIOIlS.

9. A ski binding as specified in claim 1, comprising in combination withthe toe irons each having a bore with widened upper end and with alongitudinal slot, a base plate fixed on the ski board, upwardly actingresilient tongues on said base plate, one for each end of each toe iron,and

holding screws in said base plate one for each toe iron extendingthrough the bore of the corresponding toe iron, and a disc on the upperend of each holding screw fitting in the widened upper end of the borein the corresponding toe iron. JOHANN MAUS.

